caiyu/nextpnr
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Commented too restrictive placement

Browse Source
This commit is contained in:
Miodrag Milanovic 2024-05-31 12:23:05 +02:00
parent f98253e1f5
commit 1469a31a1a
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
himbaechel/uarch/ng-ultra/pack.cc
View File

@ -578,6 +578,9 @@ void NgUltraPacker::pack_cy_input_and_output(CellInfo *cy, IdString cluster, IdS
fe->connectPort(id_LO, new_out); fe->connectPort(id_LO, new_out);
cy->connectPort(in_port, new_out); cy->connectPort(in_port, new_out);
} else { } else {
// TODO: This is too constrained, since makes rest of logic
// separated from input
/*
CellInfo *lut = net_driven_by(ctx, net, is_lut, id_O); CellInfo *lut = net_driven_by(ctx, net, is_lut, id_O);
if (lut && net->users.entries()==1) { if (lut && net->users.entries()==1) {
if (!lut->params.count(id_lut_table)) if (!lut->params.count(id_lut_table))
@ -585,6 +588,7 @@ void NgUltraPacker::pack_cy_input_and_output(CellInfo *cy, IdString cluster, IdS
lut_to_fe(lut, fe, false, lut->params[id_lut_table]); lut_to_fe(lut, fe, false, lut->params[id_lut_table]);
packed_cells.insert(lut->name); packed_cells.insert(lut->name);
} else { } else {
*/
fe->params[id_lut_table] = Property(0xaaaa, 16); fe->params[id_lut_table] = Property(0xaaaa, 16);
fe->params[id_lut_used] = Property(1,1); fe->params[id_lut_used] = Property(1,1);
cy->disconnectPort(in_port); cy->disconnectPort(in_port);
@ -592,7 +596,7 @@ void NgUltraPacker::pack_cy_input_and_output(CellInfo *cy, IdString cluster, IdS
fe->connectPort(id_I1, net); fe->connectPort(id_I1, net);
fe->connectPort(id_LO, new_out); fe->connectPort(id_LO, new_out);
cy->connectPort(in_port, new_out); cy->connectPort(in_port, new_out);
} //}
} }
lut_only++; lut_only++;
} }